1224961-80-1

Basic information

• Product Name: 1,1-dimethyl-2,5-bis[4-(trimethylsilylethynyl)-phenyl]-3,4-diphenylsilole
• Synonyms: 1,1-dimethyl-2,5-bis[4-(trimethylsilylethynyl)-phenyl]-3,4-diphenylsilole
• CAS NO: 1224961-80-1
• Molecular Weight: 607.03
• Mol File: 1224961-80-1.mol

Chemical Properties

• CAS DataBase Reference: 1,1-dimethyl-2,5-bis[4-(trimethylsilylethynyl)-phenyl]-3,4-diphenylsilole(CAS DataBase Reference)
• NIST Chemistry Reference: 1,1-dimethyl-2,5-bis[4-(trimethylsilylethynyl)-phenyl]-3,4-diphenylsilole(1224961-80-1)
• EPA Substance Registry System: 1,1-dimethyl-2,5-bis[4-(trimethylsilylethynyl)-phenyl]-3,4-diphenylsilole(1224961-80-1)

Safety Data

• Hazardous Substances Data: 1224961-80-1(Hazardous Substances Data)

Upstream product

• 160319-30-2 2,5-dilithium-3,4-diphenyl-1,1-dimethylsilole 
• 2170-08-3 dimethylbis(phenylethynyl)silane 
• 16116-78-2 (4-bromophenyl)(trimethylsilyl)acetylene 

Downstream Products

• 1224961-82-3 1,1-dimethyl-2,5-bis(4-ethynylphenyl)-3,4-diphenylsilole 

Relevant articles and documents

Silole-containing poly(silylenevinylene)s: Synthesis, characterization, aggregation-enhanced emission, and explosive detection

Hydrosilylation polymerizations of 1,1-dimethyl-2,5-bis(4-ethynylphenyl)-3, 4-diphenylsilole with aromatic silylhydrides including 1,4-bis(dimethylsilyl) benzene, 4,4'-bis(dimethylsilyl)biphenyl, 2,5-bis(dimethylsilyl)thiophene, and 2,7-bis(dimethylsilyl)-9,9-dihexylfluorene in the presence of Rh(PPh 3)3Cl catalyst in refluxed tetrahydrofuran afford a series of silole-containing poly(silylenevinylene)s. Under optimum condition, the alkyne polyhydrosilylation reactions progress efficiently and regioselectively, yielding polymers with high molecular weights (Mw up to 95,300) and good stereoregularity (E content close to 99%) in high yields (up to 92%). The polymers are processable and thermally stable, with high decomposition temperatures in the range of 420-449 °C corresponding to 5% weight loss. They are weakly fluorescent in the solution state but become emissive in the aggregate and film states, demonstrating their aggregation-enhanced emission characteristics. The explosive sensing capabilities of the polymers are examined in both solution and aggregate states. The emissions of the polymers aggregates in aqueous mixture are quenched more efficiently by picric acid in an exponential pattern with high quenching constants (up to 27,949 L mol -1), suggesting that the polymers aggregates are sensitive chemosensors for explosive detection. 2012 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem, 2012 A series of silole-containing poly(silylenevinylene)s are synthesized regioselectively in high yields. These polymers show aggregation-enhanced emission and sensitive response to explosives in aqueous media. Copyright

Hyperbranched conjugated polysiloles: Synthesis, structure, aggregation-enhanced emission, multicolor fluorescent photopatterning, and superamplified detection of explosives

Hyperbranched poly(2,5-silole)s [hb-P1(m), m = 1, 6] are synthesized for the first time in this work. 1,1-Dialkyl-2,5-bis(4-ethynylphenyl)-3,4- diphenylsiloles [1(m)] were polymerized by TaBr5, affording hb-P1(m) with high molecular weights (M